Cyber EOP - MAC Address By Mr. B

MAC Address Definition

A MAC Address is a unique identifier for devices connected to a network,
similar to how a house has its own postal address.

Each device's Network Interface Controller (NIC) is assigned a MAC
address.

MAC Address Format

A MAC address is a 12-digit hexadecimal number.

It is often displayed with a colon or hyphen separating every two digits for
readability.

Example:

●2C:54:91:88:C9
or 2C-54-91-88-C9-E3

Multiple MAC Addresses

Devices can have more than one MAC address.

Each network interface (e.g., Ethernet, Wi-Fi) in your device has a unique
MAC address.

Example:

●

A laptop with both Ethernet and Wi-Fi will have two MAC addresses.

How to Find Your MAC Address: Windows

1.

Press Start + R on your keyboard.

2.

Type cmd and press OK.

3.

At the command prompt, type ipconfig /all.

4.

Look for Physical Address under each interface (Ethernet or Wi-Fi).

How to Find Your MAC Address: Mac

1.

Open System Preferences.

2.

Click on Network.

3.

Select the interface and click Advanced....

4.

The MAC address is listed under the Hardware tab.

Finding MAC Address on Other Devices

●Roku Players: Settings → Network → About.

●Apple TVs: Settings → Network → Ethernet/Wi-Fi Address.

●Amazon Fire TV: Settings → My Fire TV → Network.

●Nintendo Switch: System Settings → Internet → Internet Settings.

●PlayStation/Xbox: Navigate through Network settings for MAC addresses.

MAC vs. IP Address

MAC Address: Unique to the device, like a vehicle's VIN.

IP Address: Assigned to the device for use on a network, like a license plate.

Key Difference:

●MAC addresses route data within the local network.

●IP addresses route data between different networks, such as over the
Internet.

Registering Your MAC Address

For wired connections, use the device registration form.

For wireless connections, visit the device registration portal.

Conclusion

MAC addresses are essential for identifying devices on a local network.

Each device has a unique MAC address for every network interface.

Knowing how to find your MAC address is useful for troubleshooting and
network management.